Zhengzhou City Chengzhi Industrial Co., Ltd., a modern high-tech enterprise, is engaged in fine chemical research, development, production and sales. We adhere to concepts including: honesty as direction, self-discipline and social commitment, brave to innovation, and keep exceeding; we take product quality as survivability, take science and technology innovation as development source; take honest and trustworthy as company passport, take hard work and dedication of our staff as company's ...